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| author | David CARLIER | 2020-07-13 15:36:09 +0200 |
|---|---|---|
| committer | Peter Maydell | 2020-07-13 15:36:09 +0200 |
| commit | 195588ccd55d3afa8621af3b4718babbf6cdca19 (patch) | |
| tree | bae6792072dcfbc871023d7d2ed08d646a6c8525 /os-posix.c | |
| parent | util/qemu-openpty.c: Don't assume pty.h is glibc-only (diff) | |
| download | qemu-195588ccd55d3afa8621af3b4718babbf6cdca19.tar.gz qemu-195588ccd55d3afa8621af3b4718babbf6cdca19.tar.xz qemu-195588ccd55d3afa8621af3b4718babbf6cdca19.zip | |
build: Check that mlockall() exists
Instead of assuming that all POSIX platforms provide mlockall(),
test for it in configure. If the host doesn't provide this platform
then os_mlock() will fail -ENOSYS, as it does already on Windows.
This is necessary for Haiku, which does not have mlockall().
Signed-off-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200703145614.16684-4-peter.maydell@linaro.org
[PMM: Expanded commit message; rename to HAVE_MLOCKALL]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'os-posix.c')
| -rw-r--r-- | os-posix.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/os-posix.c b/os-posix.c index 3cd52e1e70..b674b20b1b 100644 --- a/os-posix.c +++ b/os-posix.c @@ -337,6 +337,7 @@ bool is_daemonized(void) int os_mlock(void) { +#ifdef HAVE_MLOCKALL int ret = 0; ret = mlockall(MCL_CURRENT | MCL_FUTURE); @@ -345,4 +346,7 @@ int os_mlock(void) } return ret; +#else + return -ENOSYS; +#endif } |